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Thermal-Induced Osteonecrosis of Adjacent Vertebra after Intradiscal Electrothermal Therapy

  • Kim, Soonjoon (Department of Neurosurgery, Spine Center, Samsung Medical Center Sungkyunkwan University, School of Medicine) ;
  • Lee, Sun-Ho (Department of Neurosurgery, Spine Center, Samsung Medical Center Sungkyunkwan University, School of Medicine) ;
  • Kim, Eun-Sang (Department of Neurosurgery, Spine Center, Samsung Medical Center Sungkyunkwan University, School of Medicine) ;
  • Eoh, Whan (Department of Neurosurgery, Spine Center, Samsung Medical Center Sungkyunkwan University, School of Medicine)
  • 투고 : 2014.11.13
  • 심사 : 2015.11.09
  • 발행 : 2017.01.01

초록

A 42-year-old man was admitted to our hospital with complaints of low back pain and intermittent right thigh pain. Twelve weeks before admission, the patient received intradiscal electrothermal therapy (IDET) at a local hospital. The patient still reported low back pain after the procedure that was managed with narcotic analgesics. Follow-up magnetic resonance imaging (MRI) was performed, and his referring physician thought the likely diagnosis was spondylodiscitis at the L4-5 spinal segment with a small epidural abscess. At admission to our department, the patient reported aggravated low back pain. Blood test results, including the erythrocyte sedimentation rate and C-reactive protein levels, were slightly elevated. Biopsy samples of the L4, L5 vertebral bodies and disk were obtained. The material underwent aerobic, anaerobic, fungal, mycobacterial cultures and histologic examination. Results of all cultures were negative. Histologically, necrosis of the bone was evident from the number of empty osteocyte lacunae. In addition, there was no evidence of infection based on biopsy results. No antibiotic treatment was administered on discharge. Repeat computed tomography and MRI performed 12 months after IDET showed a bony defect in the L4 and L5 vertebral bodies, and a decrease in the size of the L4-5 intervertebral disc lesion. We report a case of lumbar vertebral osteonecrosis induced by IDET and discuss etiology and radiologic features.

키워드

참고문헌

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